CVE-2021-34525: Microsoft Windows Server 2012

High severity, CVSS 8.8. EPSS: 2.3% chance of exploitation in the next 30 days.

Windows DNS Server Remote Code Execution Vulnerability

Affected products

• Microsoft Windows Server 2012: version r2 only
• Microsoft Windows Server 2016: affected versions not specified; version 20h2 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2021-07-14. Last modified 2026-08-10.